package org.seckill.web;

import java.util.Date;
import java.util.List;

import org.seckill.dto.Exposer;
import org.seckill.dto.SeckillEnum;
import org.seckill.dto.SeckillExecution;
import org.seckill.dto.SeckillResult;
import org.seckill.entity.Seckill;
import org.seckill.exception.RepeatKillException;
import org.seckill.exception.SeckillCloseException;
import org.seckill.service.SeckillService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.CookieValue;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@RequestMapping("/seckill")
public class SeckillController {
	private final Logger logger = LoggerFactory.getLogger(this.getClass());
	@Autowired
	private SeckillService seckillService;
	
	@RequestMapping(value="/index")
	public String index(Model model) {
		return "index.jsp";
	}
	/**
	 * @param model
	 * @return
	 */
	@RequestMapping(value="/list", method=RequestMethod.GET)
	public String list(Model model) {
		//list.jsp+model = modeland view
		List<Seckill> list = seckillService.getSeckillList();
		model.addAttribute("list", list);
		
		return "list";
	}
	
	@RequestMapping(value="/{seckillId}/detail", method=RequestMethod.GET)
	public String detail(@PathVariable("seckillId") Long seckillId, Model model) {
		if(seckillId == null) {
			return "redirect:/seckill/list";
		}
		Seckill seckill = seckillService.getById(seckillId);
		if(seckill == null) {
			return "forward:/seckill/list";
		}
		model.addAttribute("seckill", seckill);
		return "detail";
	}
	
	// ajax json ,将结果封装为json
	@RequestMapping(value = "/{seckillId}/exposer", 
			method = RequestMethod.POST,
			produces = {"application/json;charset=UTF-8"})
	@ResponseBody
	public SeckillResult<Exposer> exposer(@PathVariable("seckillId") Long seckillId) {
		SeckillResult<Exposer> result;
		try {
			Exposer exposer = seckillService.exportSeckillUrl(seckillId);
			result = new SeckillResult<Exposer>(true, exposer);
		}catch(Exception e) {
			logger.error(e.getMessage(), e);
			result = new SeckillResult<Exposer>(false, e.getMessage());
		}
		//返回json数据
		return result;
	}
	
	@RequestMapping(value = "/{seckillId}/{md5}/execution",
					method = RequestMethod.POST,
					produces = {"application/json;charset=UTF-8"})
	@ResponseBody
	public SeckillResult<SeckillExecution> execute(@PathVariable("seckillId") Long seckillId,
			@PathVariable("md5") String md5,
			@CookieValue(value = "killPhone", required = false)Long phone){
		//也可以适用用spring mvc valid
		if(phone == null) return new SeckillResult<SeckillExecution>(false, "未注册");
		
		try {
			SeckillExecution tem = seckillService.executeSeckill(seckillId, phone, md5);
			return new SeckillResult<SeckillExecution>(true, tem);
		}catch(RepeatKillException e) {
			SeckillExecution execution = new SeckillExecution(seckillId, SeckillEnum.REPEAT_KILL);
			logger.debug(execution.toString());
			return new SeckillResult<SeckillExecution>(true, execution);
		}catch(SeckillCloseException e) {
			SeckillExecution execution = new SeckillExecution(seckillId, SeckillEnum.END);
			return new SeckillResult<SeckillExecution>(true, execution);
		}catch(Exception e) {
			logger.error(e.getMessage(), e);
			SeckillExecution execution = new SeckillExecution(seckillId, SeckillEnum.INNER_ERROR);
			return new SeckillResult<SeckillExecution>(true, execution);
		}
	}
	
	@RequestMapping(value = "/time/now", method = RequestMethod.GET)
	@ResponseBody
	public SeckillResult<Long> time(){
		Date now = new Date();
		return new SeckillResult<Long>(true, now.getTime());
	}
}
